#include<stdio.h>
int main()
{
    int a[10]={10,9,8,7,6,5,4,3,2,1};
    int k,s,j;
    float ave;
    for(i=0,k=s=0;i<10;i++)
    {
        if(a[i]%2==0)continue;
        s+=a[i];
        k++;
    }
    if(k!=0)
    {
        ave=s/k;
        printf("%d,%f\n",k,ave);
    }
    return 0;
}